Concentration of natural radionuclides (⁴⁰K ²²⁸Ra and ²²⁶Ra) in seafood and their dose to coastal adult inhabitants around Kudankulam, Gulf o
by M. Feroz Khan, Y. Lenin Raj, E. Mahiban Ross, S. Godwin Wesley
International Journal of Low Radiation (IJLR), Vol. 4, No. 3, 2007

Abstract: The concentrations of naturally occurring radionuclides, such as ⁴⁰K ²²⁸Ra and ²²⁶Ra, were determined in the edible fin fish and shellfish, consumed by most coastal inhabitants around Kudankulam. Fin fish and shellfish were collected from eight different sampling points within 30 km radius from the Kudankulam Nuclear Power Project site. The samples were processed and counted using HPGe γ-ray spectrometry. In fin fish, ⁴⁰K activity ranged from 34.16 to 360.7 Bq kg⁻¹ fresh, ²²⁸Ra ranged from Below Detectable Limit (BDL) ≤ 0.12 to 1.9 Bq kg⁻¹ fresh and ²²⁶Ra ranged from BDL ≤ 0.06 to 0.18 Bq kg⁻¹ fresh. In shellfish, ⁴⁰K, ²²⁸Ra and ²²⁶Ra activities ranged from 15.6 to 96.6 Bq kg⁻¹ fresh; from 0.61 to 6.61 Bq kg⁻¹ fresh and from BDL ≤ 0.06 to 1.15 Bq kg⁻¹ fresh, respectively. The total daily intake resulting from consumption of fin fish and shellfish was 63.15 Bq kg⁻¹ d⁻¹ for ⁴⁰K, 0.54 Bq kg⁻¹ d⁻¹ for ²²⁸Ra and 0.096 Bq kg⁻¹ d⁻¹ for ²²⁶Ra. The annual dosage resulting from ingestion of natural radionuclides was 1.76 × 10⁻⁴ Sv yr⁻¹ for fishermen, 2.51 × 10⁻⁵ Sv yr⁻¹ for farmers and 2.01 × 10⁻⁵ Sv yr⁻¹ for labourers. In general, ⁴⁰K ²²⁸Ra and ²²⁶Ra contribute a total dose of 1.43 × 10⁻⁴ Sv yr⁻¹, 5.61 × 10⁻⁵ Sv yr⁻¹ and 2.35 × 10⁻⁵ Sv yr⁻¹, respectively.

Online publication date: Tue, 20-Nov-2007

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Low Radiation (IJLR):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com